Structure and Photocatalysis of TiO2/ZnO Double-Layer Film Prepared by Pulsed Laser Deposition
作者： Lei Zhao , Maosheng Xia , Yuhua Liu , Biju Zheng , Qing Jiang
DOI: 10.2320/MATERTRANS.M2011345
关键词: Wurtzite crystal structure 、 Visible spectrum 、 Materials science 、 Absorption spectroscopy 、 Photoluminescence 、 Layer (electronics) 、 Thin film 、 Optoelectronics 、 Pulsed laser deposition 、 Photocatalysis
摘要: Nanocrystalline double-layer film of TiO2/ZnO was prepared by pulsed laser deposition on quartz substrate and their microstructure, optical property photocatalysis were investigated. The first/bottom ZnO layer grew its [001] direction the wurtzite structure, while second/top TiO2 consisted nanorods grown anatase structure. showed improved photoabsorption in visible light UVvisible absorption spectrum; weaken UV emission enhanced deep level photoluminescence spectrum. By degradation methyl orange methylene blue, exhibited evident photodegradation efficiency a wide wavelength range. That can be explained response range, more effective use irradiation retarded recombination electronhole pairs double films. [doi:10.2320/matertrans.M2011345]
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